The Official Website of the Dungeons & Dragons 4th Edition Game System License and System Reference Document

The Dungeons & Dragons 4th Edition Game System License (D&D 4E GSL) is a license that allows third parties to use certain intellectual property owned by Wizards of the Coast with the company’s permission in order to create products compatible with the 4th Edition of the Dungeons & Dragons Roleplaying Game.

The System Reference Document (SRD) is a reference document detailing Terms, Tables and Templates that are available for license under the GSL. The SRD is an appendix to the GSL.

This site maintains the most current versions of the D&D 4E GSL, SRD, and supporting documentation including the Statement of Acceptance form and Compatibility Logo. It also provides answers to Frequently Asked Questions (FAQs).